ngrams

ripgrep-all

rga: ripgrep, but also search in PDFs, E-Books, Office documents, zip, tar.gz, etc.

Kreuzberg

A polyglot document intelligence framework with a Rust core. Extract text, metadata, images, and structured information from PDFs, Office documents, images, and 97+ formats. Available for Rust, Python, Ruby, Java, Go, PHP, Elixir, C#, R, C, TypeScript (Node/Bun/Wasm/Deno)- or use via CLI, REST API, or MCP server.

grex

A command-line tool and Rust library with Python bindings for generating regular expressions from user-provided test cases

Melody

Melody is a language that compiles to regular expressions and aims to be more readable and maintainable